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    • 6. 发明专利
    • Electron emission element, electron beam source, and electron emission control method
    • 电子发射元件,电子束源和电子发射控制方法
    • JP2005108637A
    • 2005-04-21
    • JP2003340421
    • 2003-09-30
    • Sumitomo Electric Ind Ltd住友電気工業株式会社
    • TATSUMI NATSUONISHIBAYASHI YOSHIKIIMAI TAKAHIRO
    • H01J1/20H01J1/304
    • PROBLEM TO BE SOLVED: To provide an electron emission element, an electron beam source, and an electron emission control method capable of aiming at improvement of uniformity of temperature and stability of operation of an electron emission negative electrode, as well as simplification of a circuit concerning a heater part. SOLUTION: The electron emission element 1 is provided with the electron emission negative electrode 2 and a heater part 3 integrated with the electron emission negative electrode 2 and heating the same. The electron emission negative electrode 2 is provided with an electron emission part 4 emitting electrons from its surface 4a, and an insulating part 5 set at the rear of the electron emission part electrically insulating the heater part and 3 and the electron emission part 4. The electron emission part 4 is of a conductive diamond formed by doping impurities on an insulating diamond forming the insulating part 5. The heater part 3 is set at the rear of the insulating part 5. COPYRIGHT: (C)2005,JPO&NCIPI
    • 解决的问题:为了提供能够提高电子发射负极的温度均匀性和操作稳定性的电子发射元件,电子束源和电子发射控制方法,以及简化 关于加热器部件的电路。 解决方案:电子发射元件1设置有电子发射负极2和与电子发射负极2集成并加热电子发射负极2的加热器部分3。 电子发射负极2设置有从其表面4a发射电子的电子发射部分4和设置在电子发射部分的后面的绝缘部分5将加热器部分3和电子发射部分4电绝缘。 电子发射部分4是通过在形成绝缘部分5的绝缘金刚石上掺杂杂质形成的导电金刚石。加热器部分3设置在绝缘部分5的后部。(C)2005,JPO&NCIPI
    • 10. 发明专利
    • Cathode for electric tube
    • 电线阴极
    • JP2003059389A
    • 2003-02-28
    • JP2002182016
    • 2002-06-21
    • Samsung Sdi Co Ltd三星エスディアイ株式会社
    • SAI SHOSHOKAN TOKIKAN SHOKENJO TOINSHIN FUTETSURHO HWAN-CHUL
    • H01J1/14H01J1/20H01J9/04H01J29/04
    • H01J29/04H01J1/14
    • PROBLEM TO BE SOLVED: To provide a cathode of an electric tube and its manufacturing method. SOLUTION: The emission material layer includes acicular conductive materials and the surface roughness actually measured as the distance between the highest point and the lowest point of the emission material layer surface is controlled to be 10 μm or less. Hence, by including acicular conductive material to the emission material layer and forming the conductive path effectively, generation of Joule heat by self-heating is minimized. In addition, by controlling the diameter of the particles and pores forming the emission material layer to be even and controlling the density and porosity of the layer, the compactness and the surface roughness are improved in comparison with a cathode made by existing spray method. As the result, contraction phenomenon of cathode on operation can be prevented and even interval between the cathode and the first grid can be kept, and thus the electron emission characteristics becomes stable and the product life becomes longer. Thus, the life property under high current density region can be considerably improved to satisfy the recent needs for higher precision and larger size of the television cathode-ray tubes.
    • 要解决的问题:提供电管的阴极及其制造方法。 解决方案:发射材料层包括针状导电材料,并且实际测量的发射材料层表面的最高点和最低点之间的距离的表面粗糙度被控制在10μm以下。 因此,通过将针状导电材料包含在发光材料层上并有效地形成导电路径,能够使由自身加热产生的焦耳热量最小化。 另外,通过将形成发光材料层的粒子的直径控制为均匀,并且控制层的密度和孔隙率,与通过现有喷雾法制造的阴极相比,致密度和表面粗糙度得到改善。 结果,可以防止阴极操作的收缩现象,并且可以保持阴极和第一栅极之间的均匀间隔,因此电子发射特性变得稳定并且产品寿命变长。 因此,可以显着改善高电流密度区域下的寿命性能,以满足近来对于更高精度和更大尺寸的电视阴极射线管的需要。